War Vote In Congress Could Weigh On Global Growth

Buildup to U.S. Action Could Raise Oil Cost, Slow Economy.

The coming congressional debate on U.S. military intervention in Syria could become another impediment to stronger global growth, keeping oil prices up and weighing on consumers, businesses and policy makers for weeks.

In recent decades, potential U.S. military action in the Middle East has tended to spark heightened worries in markets—boosting oil prices, in particular—in advance of any operations. Those concerns often abated rapidly...